ETK-2026-2444Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-2444",
  "cve_id": null,
  "display_id": "ETK-2026-2444",
  "ghsa_id": "GHSA-5266-jm88-3grm",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Out-of-bounds write in cdxgen bundled Brotli decoder",
  "summary": "cdxgen standalone binaries and container images with vulnerable bundled Node.js or Bun runtimes are affected; npm installations are affected only when run on an unpatched host runtime. An attacker who supplies a scanned repository or can send requests to an exposed cdxgen server may cause vulnerable Brotli decoding and potentially execute code.",
  "mitigation": "Upgrade standalone binaries and container images to cdxgen 12.8.9 or 13.5.0. Until upgraded, use npm-installed cdxgen with a patched Node.js runtime, restrict CDXGEN_ALLOWED_HOSTS, disable remote podspec downloads with COCOA_FULL_SCAN=false, and do not expose server mode to untrusted clients.",
  "vendor": "npm",
  "product": "npm:@cyclonedx/cdxgen",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 12.8.8"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "12.8.9"
      ],
      "package_name": "@cyclonedx/cdxgen",
      "purl": "pkg:npm/@cyclonedx/cdxgen"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 13.4.0"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "13.5.0"
      ],
      "package_name": "@cdxgen/cdxgen",
      "purl": "pkg:npm/@cdxgen/cdxgen"
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 23.10678233333333,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-22T14:15:45.800015+00:00",
      "days": -0.07900833716435185,
      "is_lower_bound": true,
      "measured_at": "2026-10-22T16:09:32.451179+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-22T12:09:01+00:00",
      "days": -0.16702685585648147,
      "is_lower_bound": true,
      "measured_at": "2026-10-22T16:09:32.451179+00:00",
      "url": "https://github.com/cdxgen/cdxgen/security/advisories/GHSA-5266-jm88-3grm"
    }
  }
}